52244421 has 16 divisors (see below), whose sum is σ = 71040000. Its totient is φ = 34145280.

The previous prime is 52244377. The next prime is 52244429. The reversal of 52244421 is 12444225.

It is a happy number.

It is not a de Polignac number, because 52244421 - 2¹¹ = 52242373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52244391 and 52244400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52244429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41205 + ... + 42453.

It is an arithmetic number, because the mean of its divisors is an integer number (4440000).

Almost surely, 2^52244421 is an apocalyptic number.

It is an amenable number.

52244421 is a deficient number, since it is larger than the sum of its proper divisors (18795579).

52244421 is a wasteful number, since it uses less digits than its factorization.

52244421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516.

The product of its digits is 2560, while the sum is 24.

The square root of 52244421 is about 7228.0302295992. The cubic root of 52244421 is about 373.8350121120.

Adding to 52244421 its reverse (12444225), we get a palindrome (64688646).

The spelling of 52244421 in words is "fifty-two million, two hundred forty-four thousand, four hundred twenty-one".